In this section we will examine a system, which uses sets of tiles to recognize, whether a picture belongs to a language or not. Due to the implicit non-determinism, we also recapitulate the automata accepting the same set of languages. This will give us the possibility to describe determinism in tiling systems. We will also have a look at Wang systems. These systems recognize pictures based on sets of Wang tiles. Furthermore we will consider restarting technology in tiling systems. 